#!/bin/bash

# Slackware build script for libtorrent2

# Copyright 2023 Steven Voges <Oregon, USA>
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=libtorrent2
SRCNAM=libtorrent
VERSION=${VERSION:-2.0.8}
ASIOGNUTLS=${ASIOGNUTLS:-a57d4d36923c5fafa9698e14be16b8bc2913700a}
TRY_SIGNAL=${TRY_SIGNAL:-105cce59972f925a33aa6b1c3109e4cd3caf583d}
DEPRECATED=${DEPRECATED:-ON}
EXAMPLES=${EXAMPLES:-OFF}
GNUTLS=${GNUTLS:-ON}
PYTHON=${PYTHON:-ON}
TESTS=${TESTS:-OFF}
TOOLS=${TOOLS:-OFF}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}
DEPS=$TMP/$SRCNAM-$VERSION/deps

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $SRCNAM-$VERSION
tar xvf $CWD/$SRCNAM-$VERSION.tar.gz

tar xvf $CWD/try_signal-$TRY_SIGNAL.tar.gz -C \
  $DEPS/try_signal --strip-components 1
tar xvf $CWD/boost-asio-gnutls-$ASIOGNUTLS.tar.gz -C \
  $DEPS/asio-gnutls --strip-components 1

cd $SRCNAM-$VERSION
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

mkdir -p build
cd build
  cmake \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -Dbuild_examples=$EXAMPLES \
    -Dbuild_tests=$TESTS \
    -Dbuild_tools=$TOOLS \
    -Ddeprecated-functions=$DEPRECATED \
    -Dgnutls=$GNUTLS \
    -Dpython-bindings=$PYTHON \
    -Dpython-egg-info=$PYTHON \
    -DCMAKE_BUILD_TYPE=Release ..
  make
  make install/strip DESTDIR=$PKG

  if [ "$EXAMPLES" = "ON" ]; then
    mkdir -p $PKG/usr/share/$SRCNAM/examples
    cd examples
    cp -a \
      client_test connection_tester custom_storage dump_bdecode dump_torrent make_torrent \
      simple_client stats_counters upnp_test $PKG/usr/share/$SRCNAM/examples
    cd ..
  fi
  if [ "$TESTS" = "ON" ]; then
    mkdir -p $PKG/usr/share/$SRCNAM/tests
    cd test
    cp -a \
      test_* mutable_test_torrents ssl *.gz *.xml *.py utf8_test.txt \
      $PKG/usr/share/$SRCNAM/tests
    cd ..
  fi
  if [ "$TOOLS" = "ON" ]; then
    mkdir -p $PKG/usr/share/$SRCNAM/tools
    cd tools
    cp -a \
      dht dht_sample session_log_alerts \
      $PKG/usr/share/$SRCNAM/tools
    cd ..
  fi

cd ..

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a \
  AUTHORS COPYING ChangeLog LICENSE NEWS README.rst docs \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
